Hadronic D decays involving even-parity light mesons

被引：42

作者：

Cheng, Hai-Yang ^{[1
,2
]}

Chiang, Cheng-Wei ^{[1
,3
,4
]}

机构：

[1] Acad Sinica, Inst Phys, Taipei 115, Taiwan

[2] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[3] Natl Cent Univ, Dept Phys, Chungli 320, Taiwan

[4] Natl Cent Univ, Ctr Math & Theoret Phys, Chungli 320, Taiwan

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 07期

关键词：

MULTIQUARK HADRONS; NONLEPTONIC DECAYS; CHARM MESONS; WEAK DECAYS; QUARK; PSEUDOSCALAR; SYMMETRY; D-S(+); HEAVY; FACTORIZATION;

D O I：

10.1103/PhysRevD.81.074031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the hadronic D meson decays into a pseudoscalar meson P and an even-parity meson M, where M represents a scalar meson S, an axial-vector meson A, or a tensor meson T. These decays are first analyzed in the flavor-diagram approach. Fits to the SP modes with S being a nonstrange scalar meson show that neither the simple q (q) over bar picture nor the q(2)(q) over bar (2) scheme is favored by data. Current measurements on the AP decays are insufficient for a meaningful analysis. Some TP data are inconsistent with the others. In certain cases, the W-annihilation diagrams indicated by the data are unexpectedly large. As a comparison, we also compute their decay rates in the factorization approach using form factors extracted from the covariant light-front model. We find that factorization works well for Cabibbo-allowed D+ -> SP, AP decays free of the weak annihilation contributions (W-exchange or W-annihilation). For the other SP and AP modes, it is necessary to include weak annihilation contributions to account for the data. However, factorization fails for D -> TP decays for some unknown reason; the predicted rates are in general too small by at least 2 orders of magnitude compared to experiment. We also examine the finite-width effects of resonances. Some decay modes which are kinematically forbidden become physically allowed due to the finite width of the resonance. We show that the branching fraction of D+ -> sigma pi(+) extracted from three-body decays is enhanced by a factor of 2, whereas B(D-0 -> f(2)(1270)(K) over bar (0)) is reduced by a factor of 4 by finite-width effects.

引用

页数：19

共 89 条

[1] Partial wave analysis of χc0→π+π-K+K- -: art. no. 092002 [J].

Ablikim, M ;

Bai, JZ ;

Ban, Y ;

Bian, JG ;

Cai, X ;

Chen, HF ;

Chen, HS ;

Chen, HX ;

Chen, JC ;

Chen, J ;

Chen, YB ;

Chi, SP ;

Chu, YP ;

Cui, XZ ;

Dai, YS ;

Deng, ZY ;

Dong, LY ;

Dong, QF ;

Du, SX ;

Du, ZZ ;

Fang, J ;

Fang, SS ;

Fu, CD ;

Gao, CS ;

Gao, YN ;

Gu, SD ;

Gu, YT ;

Guo, YN ;

Guo, YQ ;

Guo, ZJ ;

Harris, FA ;

He, KL ;

He, M ;

Heng, YK ;

Hu, HM ;

Hu, T ;

Huang, GS ;

Huang, XP ;

Huang, XT ;

Ji, XB ;

Jiang, XS ;

Jiao, JB ;

Jin, DP ;

Jin, S ;

Jin, Y ;

Lai, YF ;

Li, G ;

Li, HB ;

Li, HH ;

Li, J .

PHYSICAL REVIEW D, 2005, 72 (09)

[2] Dalitz plot analysis of the decay D+ → K- π+ π+ and indication of a low-mass scalar Kπ resonance -: art. no. 121801 [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Devmal, S ;

Fernandez, A ;

Fox, GF ;

Gagnon, P ;

Göbel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

Magnin, J ;

Massafferri, A ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRTD ;

Mihalcea, D ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A .

PHYSICAL REVIEW LETTERS, 2002, 89 (12) :121801-121801

[3] Study of the Ds+ → π-π+π+ decay and measurement of f0 masses and widths [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Devmal, S ;

Fernandez, A ;

Fox, GF ;

Gagnon, P ;

Gobel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

Magnin, J ;

Massafferri, A ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRT ;

Mihalcea, D ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :765-769

[4] Experimental evidence for a light and broad scalar resonance in D+ → π-π+π+ decay [J].

Aitala, EM ;

Amato, S ;

Anjos, JC ;

Appel, JA ;

Ashery, D ;

Banerjee, S ;

Bediaga, I ;

Blaylock, G ;

Bracker, SB ;

Burchat, PR ;

Burnstein, RA ;

Carter, T ;

Carvalho, HS ;

Copty, NK ;

Cremaldi, LM ;

Darling, C ;

Denisenko, K ;

Devmal, S ;

Fernandez, A ;

Fox, GE ;

Gagnon, P ;

Gobel, C ;

Gounder, K ;

Halling, AM ;

Herrera, G ;

Hurvits, G ;

James, C ;

Kasper, PA ;

Kwan, S ;

Langs, DC ;

Leslie, J ;

Lundberg, B ;

Magnin, J ;

Massafferri, A ;

MayTal-Beck, S ;

Meadows, B ;

Neto, JRTD ;

Mihalcea, D ;

Milburn, RH ;

de Miranda, JM ;

Napier, A ;

Nguyen, A ;

d'Oliveira, AB ;

O'Shaughnessy, K ;

Peng, KC ;

Perera, LP ;

Purohit, MV ;

Quinn, B ;

Radeztsky, S ;

Rafatian, A .

PHYSICAL REVIEW LETTERS, 2001, 86 (05) :770-774

[5]

ALIEV TM, ARXIVHEPPH0701108

[6] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[7] Mesons beyond the naive quark model [J].

Amsler, C ;

Törnqvist, NA .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2004, 389 (02) :61-117

[8] Measurement of exclusive D meson decays to η and η' final states and SU(3) amplitude analysis [J].

Artuso, M. ;

Blusk, S. ;

Khalil, S. ;

Li, J. ;

Mountain, R. ;

Nisar, S. ;

Randrianarivony, K. ;

Sultana, N. ;

Skwarnicki, T. ;

Stone, S. ;

Wang, J. C. ;

Zhang, L. M. ;

Bonvicini, G. ;

Cinabro, D. ;

Dubrovin, M. ;

Lincoln, A. ;

Naik, P. ;

Rademacker, J. ;

Asner, D. M. ;

Edwards, K. W. ;

Reed, J. ;

Briere, R. A. ;

Ferguson, T. ;

Tatishvili, G. ;

Vogel, H. ;

Watkins, M. E. ;

Rosner, J. L. ;

Alexander, J. P. ;

Cassel, D. G. ;

Duboscq, J. E. ;

Ehrlich, R. ;

Fields, L. ;

Gibbons, L. ;

Gray, R. ;

Gray, S. W. ;

Hartill, D. L. ;

Heltsley, B. K. ;

Hertz, D. ;

Hunt, J. M. ;

Kandaswamy, J. ;

Kreinick, D. L. ;

Kuznetsov, V. E. ;

Ledoux, J. ;

Mahlke-Kruger, H. ;

Mohapatra, D. ;

Onyisi, P. U. E. ;

Patterson, J. R. ;

Peterson, D. ;

Riley, D. ;

Ryd, A. .

PHYSICAL REVIEW D, 2008, 77 (09)

[9] Dalitz plot analysis of the decay B±→K±K±K∓ [J].

Aubert, B. ;

Barate, R. ;

Bona, M. ;

Boutigny, D. ;

Couderc, F. ;

Karyotakis, Y. ;

Lees, P. ;

Poireau, V. ;

Tisserand, V. ;

Zghiche, A. ;

Grauges, E. ;

Palano, A. ;

Pappagallo, M. ;

Chen, J. C. ;

Qi, N. D. ;

Rong, G. ;

Wang, P. ;

Zhu, Y. S. ;

Eigen, G. ;

Ofte, I. ;

Stugu, B. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Button-Shafer, J. ;

Cahn, R. N. ;

Charles, E. ;

Day, C. T. ;

Gill, M. S. ;

Groysman, Y. ;

Jacobsen, R. G. ;

Kadyk, J. A. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Kukartsev, G. ;

Lynch, G. ;

Mir, L. M. ;

Oddone, P. J. ;

Orimoto, T. J. ;

Pripstein, M. ;

Roe, N. A. ;

Ronan, M. T. ;

Wenzel, W. A. ;

Barrett, M. ;

Ford, K. E. ;

Harrison, T. J. ;

Hart, A. J. ;

Hawkes, C. M. ;

Morgan, S. E. ;

Watson, A. T. .

PHYSICAL REVIEW D, 2006, 74 (03)

[10] Dalitz plot analysis of Ds+→π+π-π+ [J].

Aubert, B. ;

Bona, M. ;

Karyotakis, Y. ;

Lees, J. P. ;

Poireau, V. ;

Prencipe, E. ;

Prudent, X. ;

Tisserand, V. ;

Garra Tico, J. ;

Grauges, E. ;

Lopez, L. ;

Palano, A. ;

Pappagallo, M. ;

Eigen, G. ;

Stugu, B. ;

Sun, L. ;

Abrams, G. S. ;

Battaglia, M. ;

Brown, D. N. ;

Jacobsen, R. G. ;

Kerth, L. T. ;

Kolomensky, Yu. G. ;

Lynch, G. ;

Osipenkov, I. L. ;

Ronan, M. T. ;

Tackmann, K. ;

Tanabe, T. ;

Hawkes, C. M. ;

Soni, N. ;

Watson, A. T. ;

Koch, H. ;

Schroeder, T. ;

Asgeirsson, D. J. ;

Fulsom, B. G. ;

Hearty, C. ;

Mattison, T. S. ;

McKenna, J. A. ;

Barrett, M. ;

Khan, A. ;

Blinov, V. E. ;

Bukin, A. D. ;

Buzykaev, A. R. ;

Druzhinin, V. P. ;

Golubev, V. B. ;

Onuchin, A. P. ;

Serednyakov, S. I. ;

Skovpen, Yu. I. ;

Solodov, E. P. ;

Todyshev, K. Yu. ;

Bondioli, M. .

PHYSICAL REVIEW D, 2009, 79 (03)

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